Dr. Rohan Bir Singh is an Ocular/Corneal Immunology Fellow pursuing clinical and basic science research, MD MSc MPH, Claes H. Dohlman Chair of Ophthalmology, at Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School. He is also pursuing his Ph.D. in ocular immunology. His research focuses on the prevalence and pathogenesis of ocular graft-versus-host-disease in patients after bone marrow transplantation, factors modulating immunopathogenesis of acute and chronic dry eye disease, and epidemiology of corneal disorders in the United States. He has published over 40 peer-reviewed papers in top ophthalmology journals including the Ocular Surface, Ophthalmology, and American Journal of Ophthalmology, and presented his basic science as well as clinical research at the Association for Research in Vision and Ophthalmology Annual Meeting, American Academy of Ophthalmology Annual Meeting, the Harvard Biennial Cornea Conference, American Society of Retina Specialists Annual Meeting, Cornea Society, and New England Ophthalmological Society. He has held several leadership positions including the Vice-Chair of Harvard Medical Postdoc Association, considered to be the largest body of postdoctoral fellows in the United States. He was selected for the ARVO Science Communication Training Fellowship, class of 2020–2021.